Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Dale D. Ellis"'
Autor:
Dale D. Ellis, Jie Yang
Publikováno v:
Proceedings of Meetings on Acoustics.
Towed array data are very useful to explore the environment; data-model differences identify anomalies and uncertainties. Of particular interest here is the Clutter Model, which can be used to compare directly with measured towed array beam time seri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ff55e4647d4755a994f458dcf74366d
https://doi.org/10.1121/2.0001499
https://doi.org/10.1121/2.0001499
Publikováno v:
Proceedings of Meetings on Acoustics.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e0f4ba92d2207d36f40958a20da50e8
https://doi.org/10.1121/2.0001521
https://doi.org/10.1121/2.0001521
Autor:
Dale D. Ellis
Publikováno v:
The Journal of the Acoustical Society of America. 151:A138-A138
Towed array reverberation beam time series can provide information about the underwater acoustic environment by providing a snapshot of the scattering in both range and bearing. By mapping time into range and beam angle into azimuth, John Preston pio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::250627178dd8ab9c82bf383d46feaf1e
https://doi.org/10.1121/10.0010906
https://doi.org/10.1121/10.0010906
Publikováno v:
The Journal of the Acoustical Society of America. 150:A319-A319
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9701719265a130e4e5639ee5129ec457
https://doi.org/10.1121/10.0008431
https://doi.org/10.1121/10.0008431
Autor:
Dale D. Ellis, Michael A. Ainslie
Publikováno v:
IEEE Journal of Oceanic Engineering. 42:362-372
In shallow water, active sonar performance is typically limited by reverberation, making the prediction of target echo, reverberation, and echo-to-reverberation ratio an important part of sonar performance prediction. In range-dependent shallow-water
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f7b5adc9d1aa3fa6d9f68730a3e3827
https://doi.org/10.1109/joe.2017.2658738
https://doi.org/10.1109/joe.2017.2658738
Publikováno v:
IEEE Journal of Oceanic Engineering. 42:344-361
Reverberation measurements obtained with towed arrays are a valuable tool to extract information about the ocean environment. By superimposing a polar plot of reverberation beam time series on bathymetry maps, bottom features (often uncharted) can be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::361afb7d717154a79bc0e92392025cb6
https://doi.org/10.1109/joe.2017.2674106
https://doi.org/10.1109/joe.2017.2674106
Autor:
Diana F. McCammon, Dale D. Ellis
Publikováno v:
Proceedings of Meetings on Acoustics.
Gaussian beams are commonly used in ray-tracing to mitigate the effects of caustics and shadow zones. The problem is how to determine the width of this “fuzzy” beam. Porter and Bucker [J. Acoust. Soc. Am. 82: 1349–1359, 1987] proposed a method
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a098e216e1abca9aad251bf44f3251c
https://doi.org/10.1121/2.0000996
https://doi.org/10.1121/2.0000996
Autor:
Harold M. Merklinger, Dale D. Ellis
Publikováno v:
Proceedings of Meetings on Acoustics.
Reginald Fessenden developed voice-modulated radio in the early 20th century using special alternators and microphones capable of handling kilowatts of power. When the Titanic struck the iceberg in 1912, Fessenden, then in Boston, developed an audio-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf98e5378b39692569b34fda4a1d9ecb
https://doi.org/10.1121/2.0000564
https://doi.org/10.1121/2.0000564
Publikováno v:
The Journal of the Acoustical Society of America. 144:1734-1734
The Target and Reverberation Experiment was conducted in the Gulf of Mexico, off Panama City, Florida. Reverberation, noise, and target echo measurements were carried out for more than a month during April and May 2013, using a fixed source and fixed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f541631c6ec537cac78f3be3b20a5f58
https://doi.org/10.1121/1.5067695
https://doi.org/10.1121/1.5067695
Autor:
Dale D. Ellis, John R. Preston
Publikováno v:
Journal of Marine Systems. 78:S359-S371
Long-range reverberation data were gathered on towed arrays during the NATO Rapid Response exercises (1996–1998) and the Boundary Characterization experiments (2000–2004). The primary tools were various SACLANTCEN/NURC arrays towed by the NATO Re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ea3383233c95af2beb17d23821c73e8
https://doi.org/10.1016/j.jmarsys.2009.01.034
https://doi.org/10.1016/j.jmarsys.2009.01.034